Dumb-bell.



C. T. DAY.

v DUMB BELL.

Al PucAHoN FILED SEPT.26, 1914.

1,138,459. Patented May 4, 1915.

FIEEI CHARLES T. DAY, LEECHBURG, PENNSYLVANIA.

DUMB-BELL.

To all whom it may concern 1 Be it known that I, CHARLES T. DAY, a citizen of the United States, residing at Leechbur inthe county of Armstrong and State of Tennsylvania, have invented certain new and useful Improvements in Dumb- Bells; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to whichit appertains to make'and use thesame. I r

This invention relates to dumb bells and the primary object of the invention is the provision of a dumbbell which has a spring or yieldable grip portion.

Another object of this invention is the provision of a dumb bell gripping stem which is constructed of two sections adjustably connected for varying the length of the gripping stem to accommodate various conditions. V V h I With the foregoing and other objects in view this invention consists in such novel featuresof construct1on,. combination and arrangement of parts as will be hereinafter more fully described, illustrated in the ac-.

companying drawings and claimed.

In describing the invention in detail reference will be had to the accompanying drawings wherein like characters designate like or corresponding parts throughout the several views, and in which Figure 1 is a side elevation of the improved dumb bell. on the line 2-2 of Fig. 1. Fig. 3 is a fragmentary view of one end of the dumb bell showing the spring end grip in section, and Fig. 4- is a plan view of one of the springs employed in constructing the resilient hand grip. I I

Referring more particularly to the drawings, 1 and 2 designatethe bells of the dumb bell, which are constructed in the usual 'manner, and may be made of metal, wood or any other analogous substance.

The bells 1 and 2 have rods 3 and 41 secured to the inner facing sides thereof, which rods extend toward each other and have their meeting ends externally screw threaded as is clearly shown at 5 in Fig. 1 of the drawings. A collet or collar 6, which is internally screw threaded. is mounted upon the meeting ends of the rods 3 and 4. The external screw threads which are formed upon the meeting ends of the rods 3 and 4 are made oppositely, one being right Specification of Letters Patent.

Fig. 2 is a cross sectional view ring.

Patented May 4:, 1915.

. Application f iled September 26, 1914. Serial No. 868,728.

.hand grip and the other left hand grip,

so that upon the, rotation of the collar (3 the meeting ends will be drawn toward or moved away from each other, depending upon the direction of rotation of the collar. The rotation ofthe collar is provided for regulating the length difference between the I bells 1 and 2, for accommodating different widthsof hands, and also for increasing or decreasing the tension of yieldable or resilient grip springs 8 and 9 which are positioned in spaced relation to the rods 3 and 1 as is clearly shown in Fig. l. a

The yieldable or resilient grips 8 and 9 are constructed of spring sheet metal and they have their marginal edges rounded as is shown at 10, so as to eliminate any sharp edges for engagement with a persons hand when firmly gripping the dumb bell. The resilient grips 8 and 9 have their terminal ends reduced, for;forming tongues 11 and 12. The tongues 11 and 12 are inserted into slots 14 which are formed in the central I collar or washer 15 ofthe resilient spider 16.

The resilient grips 8 and 9 have beads 17 formed thereupon at the inner terminus of the tongues 11 and 12 which beads rest against the central collars or washers 15 and limit the movement of the tongue into the slot 4.

The collars 15 are slidably mounted upon the rods 8 and 4; and they have a plurality of arcuate arms 18 radiating therefrom and curved transversely to the curvature of the The arms 18 curve toward the bells 1 and 2 against which bells the ends of the arms rest.

The resilient grips 8 and 9 are arcuate, curving outwardly from their-tongued end and having their'intermediate portions disposed at the greatest distance from each other, so that they taken in unison with the resilient spider member 16 will permit of yieldable resilient grip for which the dumb bell is provided.

In reducing the invention to practice certain minor features of construction, combi bells, rods connected to the center of the facing portions of said bells, said rods having their meeting ends externally screw threaded in opposite relation to each other,

a collar mounted upon said externally screw threaded end for rotary movement for regu lating the distance between the meeting ends of the rods and the facing sides of said bells.

3. In a dumb bell structure, bells, rods secured centrally to the facing sides of said dumb bells, said rods having their meeting ends adjustabl-y connected for varying the distance between the facing sides of said dumb bells and arcuate resilient grips carried by said rods and curving outwardly therefrom for providing a yieldable hand grip therefor.

4. In a dumb bell structure, a pair of bells, a'stem connecting said bells, collars slidably mounted upon said stem, resilient means interposed between said collars and said bell and arcuate resilient grips carried by said collars and positioned diametrically opposite each other and curving outwardly therefrom for providing a yieldable hand grip for the stem.

5. A dumb bell comprising a handle having heads on its opposite ends, spaced collars slidably mounted on the handle, outwardly bowed springs connected at their opposite ends to said collars, springs mounted on said handle between said heads and said collars, said springs normally forcing said collars inwardly of the handle, and said bowed springs being adapted for movement inwardly against the handle, the inward movement of said bowed springs forcing said collars longitudinally of the handle against the tension of said springs.

6. In a dumb bell structure, a pair of bells, rods secured centrally to the facing surfaces of said bells, said rods having their meeting ends adjustably connected for varying the distance between the facing surfaces of said bells, collars slidably mounted upon said rods, resilient arcuate grip members secured to said collars and curving outwardly from said stem for providing a yieldable hand grip for said dumb bell structure.

In testimony whereof I afiix my signature in presence of two witnesses.

v 7 CHARLES r. DAY,

Witnesses-z T. LEE vm GIEsEN, v EARL G. HILL.

Copies of this patent may be obtained for five cents each, by, addressing the Commissioner of Patents,

'Washington, I). ,0. 

